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Finding the Fourth Proportional to 460.88, 687.82 and 412.24

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Solution

The fourth proportional to 460.88, 687.82 and 412.24 is: 615.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.88 : 687.82 = 412.24 : x
  2. Step 2: Convert to fraction form
    460.88/687.82 = 412.24/x
  3. Step 3: Cross multiply
    460.88x = 687.82 × 412.24
  4. Step 4: Simplify right side
    460.88x = 283,546.92
  5. Step 5: Solve for x
    x = 283,546.92/460.88
  6. Step 6: Final answer
    x = 615.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.